Hi I am nearly ready to pour a 15cm thick aircrete floor for a bathroom. Because it’s on highly reacive clay I’ve dug out 30 cms and filled it with crusher dust (fine gravel) with a plastic liner over it. I remember Hijar saying at the Mazunte workshop that I could use broken blocks and pour fresh aircrete over that. Can anyone help with the following information:
How much broken blocks can I use? (25 percent? 50 percent ? Or more?)
Do the pieces have to be small or can I use bigger sections?
Should I pour the slab in one go doing multiple 44 gallon pours to fill the space (2.5m x 4m) or should I do it in sections?
Any advice gratefully received